<!DOCTYPE html>
<html>
    <head lang="en">
        <meta charset="UTF-8">
        <title></title>
    </head>
    <body>
       <form >
           <input type="text" name="greeting" list="greetings">
           <datalist id="greetings" style="display:none">
               <option value="html4">html4</option>
               <option value="android">sdfj</option>
               <option value="iso">iso</option>
           </datalist>
       </form>
    </body>
</html>